Toxic Seahorse, known as Acid Seaforce (アシッド・シーフォース Ashiddo Shīfōsu) in Japan, is a seahorse-based Reploid in Mega Man X3. He is a stealth Reploid who joined the Doppler Army.
Obviously, don't nominate any human characters. Hybrids like Cheetah or The Lizard are okay, as are shapeshifters with one set animal form (eg Professor McGonagall.)
